Question

The area of a rectangle whose length is 3 cm and breadth is 21 cm is
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Answer 1

Answer:

Area = length x breadth

Area = 3 x 21

Area= 63 cm^2

Step-by-step explanation:

hope it helps

Answer 2

Answer:

The area of a rectangle is $63cm^2.$

Step-by-step explanation:

As per the data given in the above question,

Given that:-

The length of a rectangle = $3cm$

The breadth of a rectangle = $21cm$

We have to find the area of a rectangle,

A rectangle is a four-sided two-dimensional plane figure.

The rectangle is a type of parallelogram that has all of its angles equal.

The area of a rectangle is calculated by multiplying the length and breadth of a rectangle.

Here we have to use the formula of the area of a rectangle,

i.e., $A = l\times b$

Where, l = length  

            b = breadth

Given:- l = $3cm$ and b = $21cm$

Substitute the given values of length and breadth in the above formula we get,

$A = 3\times 21$

Multiplying $3$ by $21$, we get

$A =63cm^2$

Hence, the required solution is $63cm^2.$